Roller-bearing cage



sept. 28,1926. 1,601,103

, R. F. BowER ROLLER BEARING QAGE Filed Nov. 14, 1921 Patented Sept. 28, 1926.

"STAI acties aar "Erica ROBERT F; BOWER, OF DETROIT, MICHIGAN, ASSIGNOR TO BOWER ROLLER BEARING- COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

ROLLER-BEARING CAGE.

The invention relates to roller bearing cages and has for its obj ect the provision vofv a cage having spacers engageable with the rolls to spaceand align the same, the cage being so; arranged that lubricant may freely. reach the surfaces of the rclls.- With this object, as wellas others, in view, the rinvention resides in the novel features of construe-- tion as more fully hereinafter set forth.

In the drawings: Y Y

Figure l is an end view with parts broken away of a rolle-r bearing embodying my invention;

Figure 2 is a side view of a portion there- Figures 3 and 4 are views respectively, similar to Figures. 1 and 2, of a modified construct-ion.

As shown in Figures 1 and 2,-the roller bearing comprises the spaced heads 1 and 2 connected by the shouldered tie bars 3 interf mediate the rolls 4 which latter have reduced pivot portions 5 extending' through apertures in the heads 1 and 2, these apertures having a greaterdiameter than the diameter` largements 7 atY one end forming opposed inclined bearing surfaces 8 and 9 for taking care of end thrust in opposite directions. The surfaces ofthe cylindrical portions as well as the inclined bearing portions extend "beyond inner and outer peripheries ofthe heads 1 and 2 to engage corresponding portions in the inner and outer'race members 10 and 11 of the roller bearing unit.

For the purposeY of properly spacing the rolls 4 and holding the same 1n parallelism Ytherevare the spacer plates 12 and 13 mounted lupon the tie bars 3 adjacent to the `inner Vfaces of the heads 1 and 2. These spacer V.plates are provided. with the concave edges 14 vand 15 respectively substantially conforming to the curvatures of the main cylindrical portions 6 and the cylindrical portion of the enlargement 7 fintermekdiate the inclined bearing portions 8 and v'9. The tie barsr 3 have the shoulders 16 engaging the inner faces of the spacer plates tohold the same from inward longitudinal `movement upon the tie bars. The spacer plates are preferably rotatably mounted upon the tie bars to permit of the rolls lindlng their proper seats on the spacer plates.

As shown in Figures 3 and 4, there is the same general arrangement of roller bearing cage, but the spacer plates have at their bearing edges the transverse flanges 17 which are parallel to each other and which engage` the main cylindrical portions of the rolls and also the cylindrical portions of the enlargements of the rolls. With this arrangement, the material from which the spacer plates are stamped or pressed may be of less thickness than that of which the spacer plates shown in Figures l and 2 are stamped and at the same time the width of their bearing surfaces may be as great depending upon the width of the transverse flanges.

From the above description, it will be readily seen that I have provided a roller bearing cage with means for holding the rolls spaced and in parallelism which at the saplie time permits of free lubrication of the ro s.

l/Vhat I claim asmy invention is:

1. In a` roller bearing cage, the combination with spaced heads, of tie bars extending therebetween, and sheet metal spacers mounted on said tie bars and having transversely extending portions engageable with said rolls for relatively short portions of their lengths.

2. In al roller bearing cage, the combination with spaced heads, of tie bars extending therebetween, and sheet metal spacers lnovably mounted on said tie bars and engageab'le with the ends only of the rolls.

3. In a roller *bearing cage, the combination with spaced heads, of tie bars therebetween, sheet metal spacers engageable with the ends only 'of the rolls and mounted upon said tie bars, means for preventing more than a limited rotation of said spacers, and` mea-ns for positioning said spacers longitudinally of the rolls. i' Y Y 4. Ina roller bearing cage, the combination withspaced heads, of tie bars extending therebetween intermediate the rolls, and spacers rotatably mounted upon the tie bars and having concave surfaces engageable with the ends only of said rolls to space the same. Y i

5. In a roller bearing cage, the combination with spaced heads, of tie bars eXtending therebetween intermediate `the rolls,

spacer members rotatably mounted upon said tie bars and ha 'ing concave bearing` sur- Jjaces engageable only with the ends o'tA said rolls to space the same, and shoulders upon said tie bars intermediate said spacer meinbers for positioning the latter longitudinally ot said rolls.

G. In a roller bearing cage, the combination with spaced heads, of tie ba1s'e:\'tendingr therebetween intermediate t-hc rolls, and spacer' plates rotatably mounted on said tie bars and provided ivitlh transverse flanges at their edges ot engaging relatively short portions of the rolls to space the same.

7. In a roller bearing cage, the combination ivith spaced heads, ot tie bars e-ttending therebetween intermediate the rolls, spacer plates rotatably mounted upon said tie bars and having hanged edges engageable only with the ends of said rolls, and means for holding` said spacer plates in position.

S. In a roller bearing cage, the combination with spaced heads, of tie bars extending therebetween7 spacers mounted upon said tie bars and provided with concave surfaces engageable with the rolls for relatively short portions of their length, and means for positioning said spacers longitudinally of the rolls.

9. In a roller bearing cage, the combination ivith spaced heads, of' tie bars cf:- tending therebetween intermediate the rolls. and sheet metal spacers rotatably mounted upon said tie bars and having concave edges engageable vrith the ends only ot' said rolls.

lO. ln a roller bearing cage, the combination ivith spaced heads, ol? tie hars therebetiveen and spacers pivotally mounted on said tie bars and having bearing` surfaces engageable with. said rolls forrclatively short portions ot' their lengths, .said bearing surfaces being shaped to prevent more than a limited rotation of said spacers on said tie bars.

In testimony7 whereof l al'lix my signature.

ROBERT l?. ROUTER. 

